Liner for pipe openings and method of producing the same



L. C. GNAGI Fil'ed Feb. 13. 1926 5 Sheets-Sheet 1 Nov. 29,1927.

LINER FOR PIPE OPENINGS AND METHOD OF PRODUCING THE S AME Nov. 29, 1927.

L. C. GNAGI LINER FOR PIPE OPENINGS AND METHOD OF PRODUCING THE SAME 5 Sheets-Sheet 2 s Feb. 15. 1926 Nov. 29, 1927.

L. C. GNAGI LINER FOR PIPE OPENINGS AND METHOD OF PRODUCING THE SAME 5 Sheets-sheaf 3 Filed Feb. 13. 1926 Nov. 29, 1927. 1,651,269 L. C. GNAGI LINER FOR PIPE OPENINGS AND METEOD OF PRODUCING THE SAME Filed Feb. 15. 1926 5 Sheets-Sheet 4 Nov. '29, 1927. 1,651,269

L. C. GNAGI LINER FOR PIPE OPENINGS AND METHOD OF PRODUCING THE SAME Filed Feb. 15, 1926 5 Sheets-Sheet 5 gnaw/"tow Patented Nov. 29, 1927;

LAW'REN o. GNAGI, or LIMA, onro.

LINER FOR PIPE OPENINGS AND METHOD or rRonUoIne TnE SAME.

A plication filed February 13, 1926. Serial No. 88,147.

This invention relatesto liners for pipe openings and method ofproducing the same.

An important object of the invention is to provide a lining sleeve structure from which the finished liner is to be formed, adapted to be placed in position prior to the formation of concrete or other walls or floors and adapted normally to remain therein to provide an opening for the passage of steam pipes and the like.

A further object is to provide a sleeve structure of the above mentioned character provided with means for securing a ceiling plate or the like in position after the pipes havebeen inserted through the sleeve.

A further object is to provide a sleeve structure of the charactermentioned which may be readily removed from the opening in Which it is arranged if it develops that the sleeve has been set in improper position so that the pipe cannot be inserted therethrough. i Y

'A further object is to provide a sleeve structure of the above mentioned character substantially larger than the pipe to be inserted therethrough, means being provided for securing a ceiling plate in'position when the pipe extends through the sleeve eccentrically with respect thereto.

A further object is to provide means'for securing a floor plate in position around the pipe after the latter has been inserted through the sleeve.

A further object is. to provide means for supporting the sleeve in position on a steam or other pipe after the sleeve has been found to be incorrectly placed, and has been re-V moved, to. permit the enlargement of the opening inrthe floor or wall.

In producing the finished liners, I employ sheets of flexible metal or the like each of which is slit atone end toprovide a pluralityof fingers after which the sheets are rolled by hand or otherwise into open ended tubes of suitable size to receive the pipe which is to be positioned therein. After each tubefhas beenthus rolled. a'collar is slipped over the upper end of the, sleeve to prevent it from opening, wiereupon'the fingers described are bent outwardly at right angles to'the axis of'the-sleeve. The

collar is moved downwardly into gcontact with the fingers, and any suitable fastening means are employed forholding the upper' ends of the sleeves to prevent them from 'embedde'din the ceiling, mentssuoh as screws may be arranged in opening. In forming the tube or sleeve, the edges of the sheet overlap each other and remain in this position. In practice, I prefer to employ a fastening element at the upper end of the sleeve in the form of a bolt passing through the overlapped portions of the sleeve, this boltbeing removed; after the floor has been formed around the sleeve inthe manner to be described. The collar is provided as a supporting means for screws or other sockets, and in asse1nbling the device in the manner referred to the screws are inserted throughopenings in the collar and secured to the sockets, the

latter remaining in the wall or fioor after it is finished. After the fingers have been bent outwardly and the collar and assoeiated elements'placed in position, the collar andfingers may be nailed or otherwise secured against a form of wood or the like built to support the floor during the formation thereof. A concrete or other floor may be formed in the usual manner surrounding the sleeve andsupported on the form, and after the floor has properly set, the form is removed. This 'exposes'the fingers and the latter may be bent downwardly to their initial position forming continuations of the sleeve parallel to the axis thereof, whereupon the screws are removed to permitthe collar to be drawn downwardly from the lower end of the sleeve. This operation leaves the sockets embeddedin the ceiling ready to receive fastening elements by means of which the ceiling plate may be secured in position. The steam pipe is-then inserted in position and a suitable ceiling plate, such as will be described, is placed in position around.- the steam pipe and moved upwardly into contact with the ceiling, the plate loosely fitting the pipe to permit expansion and contraction thereof.

\ The plate employed is provided with openings adapted to register with the sockets and fasten ng eletheopenings in the plate and threaded into the sockets. Under some building cond tions, fwhere the steel framework has been completed,xiitissometimes desired to place the risers in position prior to the formation of the successive floors. Undersuch conditions itwill be obvious that the sleeve cannot be supported on the floor forms. Under such conditions the sleeve may be foiled l ill the manner described and may he supported in position around the risers, the supporting means being adapted to hold the sleeve in until position to prevent it from opening the floor has been completed. The i employed is preferably of greater ler than the thickness of the floor in which it is to he arranged wher h v the upper end of the sleeve projects above the floor line. After the floor has hecn' completed the upwardly extending enrl of the sleeve is rut oil to perniit a suitahle lioor plate to he placed in )osition.

)ther ohjects and advantages of the inve11- tion will be apparent duringthe course of the following description. i

In the d'awing's I have shown several forms of the invention. In this showing.

Figure 1 is a sectional view taken centrally through the sleeve showing the latter in initial position,

t Figure 2 is a sin'iilar view showing the .tloor formed around the sleeve,

Figure 3 is an enlarged detail view similar to Figure 2 showinglhe lower end of the sleeve and associated elements,

Figure e is a view similarto Figure 2 showing the ceiling termed a gainst the lower face of the floor,

Figure 5 is a similar view showing the device completely assembled,

Figure ('3 is a perspective view at one of the ceiling or floor plates,

Figure (5 a detail perspective of one of the supporting plates,

Figure 7 is a similar view of one ot the floor plate securing elements Figure 8 is a view similar to Figure 5 showing the means for securing the ceiling plate in iositionwhen the pipe is not centered within the sleeve, Figure 9 is a section on line l -tl et' 15 r;- ure 8, i

F igure 10 is a detail section of the upper end otthe sleeveancl associated elements taken on line ltl ltl of Figure 9, Fiq ure 11 a fragmentary perspective view showing the asseinhlvo'l? the elements at the lower end of the t l we Figure 12 is a plan view of th} sleeve showing the lllG'llOtl oi? removing it t Figure 13 is a cent :il vertical sectional view the same,

Figure 11 is a horizontal sectional. 'i'iew through the steam pipe taken above the lion:- showing the method oisupportingi the sleeve in a newly formed opening; inthe floor,

Figure 15 is a central. vertical sectional View showing the sanie,

Figure 16 is a central vertical sectional view showing the inodilietl method at securing the floor and ceiling, plates in position, l H Fin-tire llis of Figure 16,

a detail sectien on line 1 7- 11" Figure 18 is a central vertical sectional view showing the means of securing the sleeve in position in a wall, A

Figure 19 is a view similar to Figure 18 showing the device completely assembled,

FigureQO is a detail perspective of one oi? the supporting cup nienihers, and,

Figure 21 is a tletail perspective showing the blank used innialnng the sleeve.

Referring to Figiire 21 oi the drawings, the numeral 10 designates the llltillli tillh ploved in forming; the sleeve to he descriheth This hlanlt is Formed oil llexihle sheet metal and is slit adjacent one end as at 11 to proride a plurality of lingers 12 for a purpose to he described. Adjacent one side, the sheet ot material is cut away as at 13 to ,perniit the edge 14; oi. the n aterial to overlap the opposite edge 15. The end of the sheet opposite the lingers 12 may he Provided with plurality of relatively sinall openings 16, and inwardly of the openiiig'sthe sheet is provided with apair of somewhat larger openlZlgZ'S ll" adjacent opposite etlgesi In forming the sleeve, the sheet 11) may he wrapped around a suitable mandrel such as any convenient piece of pipe or the like to provide a suhstantially circular sleeve 18 as shown in Figure 1. After the sleeve has been formed in a inainier described, a belt or similar tastening element 19 is passed through the o ienings 1'? the latter heing adapted to register with each other after the sleeve rolled or wound. A collar 20 is then slipped over the opposite end of the sleeve to hold the device in proper position and to prevent it- 'l'roin opening as will he apparent. 'lhe collar 20 is formed oi relatively heavy sheet. metal as illustrated iii Figure hof the drawings. As shown. the collar iltl provided with diainetricalli opposite openings .21, and is further provided hetween these openin s with a plurality oi relatively smallopenings 92 adapted to reeeive short {latheaded nails or the like 23 as Sl'lOWll in Figure 1. In one 'l'aee oi the collar iltl the openings 91 are preterahly coneti-r-sniil; as shown in. Fiiire I to permit a screw or the lilie 534- to he in sertezl through the oi eningr. ii. spiral new sn'i'ronnds the i will, ion the n ure 2i.

Htltlllf'll 23;, device is :iasviiililetl as shown in i 'lhis socltet a commercially available the vice formed of snirally wound heavy wire to :l'orin a screw socket, hot the invention is not limited to the use of the particular socket illustrated. i

in Figure 1 o? the drawings I have shown the device a ranged intits initial position over a floor for n ot the usual type, pretterahly t rn ed oil wood. Guy wii 2'7 iiiaf he conn a; i as at 28 to the opening 143 in the upper end of the sleeve and the opposite end oi. the ruv wires nia he seciiietl to the Ltern 26 liy 1L ls or the l llllio prevent the upper end of the sleeve 'troi n litieoining dis ion till

till) placed while, tl1e" floor is being formed.

,into the form 26 through i-t1] the device arranged in the position shownfthe nails 23are :dri ven downwardly t'he'openings as will be obvious. Thus it willbezappar'ent that the sleeve conveniently ma-y be arranged over a form after which the floor 80. may be formed as shown in FzigureZ lVh-ile I have illustrated the use of guy wires 27 for supporting the sleeve, these members usually maybe "dispensed with since the nails 23 serve toefiiciently support the sleeve. The sleeve maybe provided in any suitable lengths according to the thickness of the floor in which it is to be employed, but in each individual case I prefer to employ a sleeve ofsuch a'length that the bolt 19will be arranged above thefloor line as indicated in Figure 2.

After fthe-fioor has been formedyas described, the supporting *forn1f26 may be re moved as Will be apparent. In the use of V the numeral 35 In Figure 6 of the drawings.

the device, I prefer to 'fill thesleevewi-th sand as illustrated 'in' Figure 1 to prevent concrete or thelike' from being poured into the sleeve while -the"-fl'oor is being poured.

. The presence of thefsand also pr'eventsthe sleeve from being collapsed when the' floor is formed of "concrete which "is usually tamped'after it is poured. The use of th-e sand ordinarily is not essentialhowever and may be eliminated if "desired.

mits thesand'to be emptied from the sleeve as will be apparent. After the removal of the formthe fingers 12are-"bent downwardly the sockets, butprojeet downwardly there 1 from a distance i greater than "the tlllClIHGSS of the plaster to be'applied to the ceiling.

These screws are permitted toremainin this posrtionfuntilthe' plastering has been com- 1 steam" pi'pe 42"1llu'strated'1n Figure?) of the pletetl. "The boltl9;is then reinovedffrom th'e' upper end" of the sleeve and-rit-fiwill be apparent that under such conditions "the sleeve is prevented fromTunrolling only; :by the presence oft-he 'concr'etmfno"mechanical fastening elements :being secured between the overlapping; ends of; the sleevef or surrouhdingi'the sleeve. The upperend 'ofrthe -serted through the sleeve. wlhe-guyywires29 are cut (saw-ah tin-snips or 'the' like as close sleeve is then slit as'at 31,':to:provideiplurality of fingers 32 for a purpose to-be 'described; These fingers ma be formed by cu'tting'theflslitsiby tin'sn'i as, and this operation-may be performedeither bef'oreor after thefl ooring has been placed in ap'osi-' tion, or before or after thepi-pe has been .in-

to "the i-fioor as: possible"rancl': the loopsfat the u per ends thereofrenioviedfrom thex open If the sand is employed the remov al'o'f the form 26 perterial' forming the Ceiling.

The risersof the pipes may be inserted through the sleeve either after the floor and ceiling have been placed in position or before these 'operations have commenced and the riser Wlll occupy the position shown in Figure 5 of *th'e'drawlngs if the sl-ee'vehas been properly centered. "It is desired to finish or; the openin-garound the pipe at the lewer end'of the sleeve, and' for this purpose I pro vide a ceiling plate indicated as 'a'whole by,

This plate'c'omprises'a pair of complemen- "be "apparent. Each section-is preferably provided with flanges 37', and oneend' of each 'sectionis provided with atongue 3S offset-from the faceof the plate as at 39 to permit it to be inserted in the'opposite plate section. Each of thetongues38 is prov ded With an opening 40 which is adapted to' ahn'e wvith openings 'el formed' in the "body 'portions of the plate sections when the latter are assembled. The space-between the respective pairs of openings iO'fa'nd' 41' is equal to the space between the sockets 25'as will be apparent. WV'l-ren it is desired to place the ceiling .platein position, the screws-24 are removed from thesockets through the open ings formedby the screws in the ceiling,

whereupon the ceilingplate is assembled by placing the sections thereof around the drawings. The ceiling plate-is lnoved up Wardly against the 'ce-il'ingand srevolved. until the respective ope1nngs 40 and 41 ahne with the's'ocltets 25 whereupoir the screws pansionand contraction.

The fingers 32 at the upper end ofthe sleeve may-be bent outwardly .a t'an-angleand are then tcutioff by .tin #snips so. that they project only a? slight. distance aboveithe floor. I

This utti-Iig' operation may the. performed" either before or after the floor 3 1- is placed in position, or before or after the pipe 42 has been inserted in the sleeve, the outward bending of the fingers 8:2 merely facilitating the cutting operation. After being cut, the portions of the fingers remaining on the upper end of the sleeve are bent outwardly and a liner plate 43, which may he similar to the plate 35. is arranged in position around the pipe and rests upon the floor. Ordinarily the plate -11-3 is permitted to remain in its position by gravity since architects usually do not specify that the floor plates be anchored. I provide means however, whereby the floor plates may be anchored in position if desired, or if specified by an architect. In liigure T of the drawings I have shown a. plate fil -fl: adapted for use in securing the plate 48 in position. The plate tit formed of flexible sheet metal and is split as at a5. At diametrically opposite points blocks 46 are spot welded or otherwise secured to the plate M, and each block is provided with threaded o Jenings d7. The position of the openings -il-i' corresponds to the position of the screw openings provided in the plate 43. the latter openings being similar to the openings l0 and 41-1 of the plate 35. \Vhen the plate at is to be employed, it is flexed by laterally separating the split ends thereof to permit it to be placed in position around the riser. It is then slipped over the upper end of the sleeve by passing it around the lingers 32 and contacts with the i100 as shown in Figure 5. The fingers 32 are then bent outwardly and downwardly to contact with the plate 44. to secure the latter in position, whereupon the plate 4-3 may be arranged in contact with the floor,surrounding the riser in the manner described. Screws 48 are then inserted through the openings in the plate 43 and are threaded in the openings 4-? whereupon it will be apparent that the floor plate will be secured in position.

In Figures 8 to 'lliuclusive, I have illus trated means for securing the l'loorand ceiling plates in position where the sleeve has been mounted slightly out Oil alinement with the riser to. be inserted therethrough. 'When placing the sleeves in position, the location for the sleeves is usually (lDtOl'll'llflOtl by measuring il rom the center o'l previously urea-ted columns and the like and it is very diliicult to accurately center them with respect to the risers. .\s .priwiouslv stated however, the sleeve issubslantially larger in diameter than the pipe to be inserted. thcretlirough, and consequently no trouble is experienced in inserting the pipe if the sleeve is only slightly outol alineinent as illustrated in Figures 8 to 11 inclusive. llnder such conditions however, it will. be apparent that the serous 2st cannot be inserted through the ceiling plates and threaded into the sockets 25, nor can the screws 48 he placed in position, in the manner previously described. Under the conditions stated, I employ clips 49 formed of metal sulliciently thick to permit it to be drilled and tapped. Each clip 49 is provided at one end with a threaded opening 50 and at its opposite end with a slot 51. \Vhen it is desired. to place the ceiling plate in position, the screws E l are inserted through the slots 51 and are rotated until they frictionally engage the clips ell). The opposite ends ot the clips extend in opposite directions as shown in lligure 11, and the openings 50are arranged. to coincide with the openings in the ccilii'ig plate. Short screws 52 then may be inserted through the openings in the ceiling plate and threaded into the oienings 50 to secure the ceiling plate in position. It will be apparent that the clips may he revolved about the screws 24 according to the relative positions ol? the axes of the riser and the sleeve in which it is inserted to permitthe openings 50 to aline with the openings in the ceiling plate. Similarly a pair of clips 19 may be secured to the blocks 46 by short screws 53, and the free ends of the clips may be swung to proper positions to aline the openings 50 with screws Til adapted to be pi sscalv through the openings in the door plate 43.

It sometimes occurs that the degree of misaliuement of the risers and sleeves is such that the former cannot be insertedin the latter, in which case it is necessary to re move the sleeves and enlarge the opening in the floor, to permit the pipe to he placed in position. As previously stated, the sleeve is held in position only by the concrete or other material which Slll'l'nlliltlfi it, no tast ening elements o'l any kind being employed alter the sleeve has been positioned in the manner previously described. \Vhen it becomes necessary to remove the sleeve, a workman may grasp the inner overlapping end of the sleeve with a pair of pliers or the like and revolve it substantially to the position indicated in Figures 12 and 13 Whereupon upward force may be exerted to withdraw the sleeve from its opening. This operation maylbe readily performed and eliminates the necessity of drilling the concrete around the sleeve to permit its removal. After the sleeve has been removed in the manner described, the opening is enlz'irged as at 55, the direction in which the opening is enlarged depending upon the posititiinot the steam pipe as will be obvious. After this operation has been completed it is tier-sired toreplace the sleeve and to till the opening opposite the portion which has been enlarged. In Figure 20 of the drawings 1 have illustrated one member 56 of apair of complementary members which comprise asupe porting cup. Eachof these members coinprises a relatively largesemicylindrical per tion 57 and a relatively small cylindrical one ofthe cups is assembled the diameterv of the portions 57 thereof correspond to the diameters of the rolled sleeve, while the diameter of the portions 58 correspond to the diameter of the "pipe 42. In replacing the sleeve theupper and lower ends thereof are arranged in the portions 57 of the cups, and the complementary members of the cups may be secured together by bolts 62 arranged in the openings 6]., as shown in Figure 14. The bolts 62 are adapted to clamp the portions 58 of the cups against the pipe 42, and accordingly it will beobvious that the serve to support the sleeve in position as illustrated in Figure 63 may be arranged against the ceiling to cover theopening previously formed in the floor, and concrete or other material may be poured therein to fill the opening. The

; poured concrete obviously encases thesleeve thus permitting the removal of the cups 56. The floor itself will then support the sleeve,

and the elements associated with the sleeve 8 may be assembled by using the plates 44 at 7 Supporting the ceiling plate. If desired, one

both ends of the sleevefor securing the floor and ceiling plates in position.

In some cases it is not required that the sleeve be replaced after the'opening has been enlarged, if the opening, after being cut, is not sufiiciently large to extend outwardly beyond the floor and ceiling plates. As shown in Figure 16, I provide means for securing the floor and ceiling plates in position without the use of the sleeve. As shown, a pair of the clips 49 are associated with the floor and ceiling plates, and the pairs of clips are connected by wires 64 connected at their ends to the slots 51. The lower clips are dropped down through the opening surrounding the pipe and screws 65 ar passed throughthe openings in the ceiling plate and threaded into the openings 50 of the clips. The clips 49 at the upper ends of the wires are similarly secured to the floor plates as will be apparent.

The use of the spiral sockets 25 or other screw securing means is not necessary for of the plates 44 may be employed at the lower endof the sleeve in exactly the same manner as it is used at the upper end to secure the floor plate in position. When so.

used,:one of the plates 44 is simply slipped over the lower end of the sleeve against the ceiling and the lower ends of the fingers 12 are bent outwardly to support the plate 44. The ceiling plate then may be placed in position by arranging screws in the opening of the ceilingplate and threading the screws inthe openings 44. I prefer, however, to

cups

Any suitable form employ. the spiral sockets 25 in. actual prac tice.

, In Figures 18 and 19 of the drawings I have shown means for arranging the sleeve in apreviously formed brickwall. Referring to thesefigures, thenumeral 66 designates a brick wall in which it is desired-to arrange a steam orother pipe 67. Sufficient bricks are removed from the wall to provide a-relatively large openingGS, as shown, after which the pipe is inserted in the opening. The sleeve 18 is then rolled in the manner described and is held in position by a pair of cups 56.. The cups serve to support the sleeve concentric with the pipe as will be obvious, whereupon the opening 68 may be closed by filling with bricks or cement. The cups are then. removedand a pair of plates 44 are arrangedover the ends of the sleeve. Both ends of thesleeve in this case are split to provide fingers, and the latter are cut off at suitable points to provide relatively short portions 69 which may be bent outwardly to engage the plates 44 and hold them in position. Suitable finishing plates 70 similar to the floor and ceiling plates previously described then may be secured to the plates 44 pipes. By elongating'the sleeve to permit itto project a substantial distance beyond the level of the floor, thebolt 19 may be removed from the "opening 17 and the plate 20 may be removed'from thelower end of the sleeve. The floor or other medium surrounding the sleeve then serves as the supporting means therefor and also prevents the latter from unrolling. The upper end of the sleeve then may be cutofi' to a suitable length in the manner described. By eliminating fastening elements from the finished sleeve to retain it in therolled posi tion, the sleeve may readily be removed whenever it is necessary to enlarge the opening in which the sleeve is arranged.

It is to be understood that the forms of the invention herewith shown and described and the method of forming the sleeves are to be taken as preferred examples of the same and" that various changes in the shape, size, and arrangement of parts, and the method referred to may be made without departing from the spirit of the invention or the scope of the subjoined claims.

'I claim:

1. The herein described method of prothe sleeve intermediate the collar and the opposite end ofthe sleeve,rt-zleasinn the last named end of the sleeve,bending said fingers back to positions parallel to the axis of the sleeve, and sliding the collar from the adj aeent end of the sleeve. j

2. A device of the character described comprising a sheet of flexible material rolled toform a substantially tubular sleeve, one end of said sleeve being slit to provide a plurality of fingers, a collar adapted to slidablfv surround theend of said sleeve adjacent saidfingers,said fingersbeing adapted to be bent OilfiVtllTllYtO Contact with the adjacent face ofsaid collar, andreleasable means associated with the o ilposite end (it said sleeve and cooperating with said eollarior holding said sleeve in tubular forni.

3. A device of the character described comprising a sheet of flexible material rolled to fornr a substantially tubule sleeve, a

collar adapted to slidably surround said sleeve adjacent one end, and releasable means associated with the opposite end of said sleeve and cooperating with said collar for holding said sleete in tubular form.

it; A device of the character described comprising a sheet of flexible material rolled to form a substantially tubularsleeve with the edges of the sheet overlapj'iing, a collar adapted to slidablysurround said sleeve ad; jace it onc end, and a reniowdile fastening element passing through the overlapping portions of the sheet adjacent theopposite end ofsaid sleeve.

A device consstrueted in accordance with claim 4-; wherein"the and ot said sleeve ad jacent saidcollnr is slit to provide a plurnh ity of lingers adapted to be bent outwardh to contact with the adjacent taco oisaiil collar.

6. A device of the character descrilaal coniprisiilgr a sheet of flexible material rolled to forni a" substantially tubular sleeve, and a pli'lrality oi" releasable nieans tor holding: saidjs ve in tubular form, one oi said means comprising a sheetnietal collar adapted to slidably surround said sleeve adjacent one end.

7. A device of the character described comprising :1 sheet offiexible material rolled to i'brin a substantially tubular sleeve, a

collar adapted toslidahl j sur roimd said sleeve adjacent one end, a scre iv receiving socket arranged against the face of said collar remote from the adjacent e ndtrt said sleete, ascreiv passing through said collar and into said socketpandreleasable means associated with the opposite end oi said sleeve and cooperating with saidbollar For holding); said sleeve in tubular iorln 8. A device of the character described comprising a sheet of flexible material rolled to term a substantially tuluilar sleeve with the edges of the sheet overlapping, a collar adapted to surround said sleeve adjacent one end, a removable fastening element passing through the overlappiijig port-ions of the sheet adjacent the opposite end of said sleeve, said sleeve being provided adjacent said last named end with a plurality of openings, and guy \viresseeured at one end tothe last named end of said sleeve, said guy \vir es passing); through said pluralityot openings. 9. The herein de cribed method of produ o' in; and placing); lining sleeves :[or pipei'ipen ings which consists in slitting; one end 013 a sheet oi flexible material to form a plurality of lingers, rolling thesheet oi Jiiaterial into substantially tubular form with the lingers thereof at one end, bending the lingers out 'ardly, surrounding the sleeve with a holdiu y collar adjacent and supported by the lingers, rele: sably holding theop osite end of the sleeve in tubular forni, orininga structure around the sleeve intermediate the collar and the opposite end of the sleeve, the Slll'lOHlltlllig structure terminating inwardly ot the rel iasable holding means,releasing the last named end of the sleeve, bending the lingers back to positions parallel to theaxis of the sleeve, sliding the collar fr prnthead j acent end of thesleevc,rebending the fingers outwardly, and arfanging" a ceiling; plate, over the end of the sleeve adjacent the. fingers. r v 10. The herein. described, method of producing and placing lining sleeves for pipe openings which consists in slitting one end of a sheet of flexible material to form a pierality oi"lingers rolling'the sheet ot material; into substantially tubular :l'orni with the lingers thereof at one end, bending the lingers outwardly, surn iuuding the sleeve with a holding collar :uijaeeut and in contact with the lingers, securi d r a socket to the collar, releasably holding the opposite end of the sleeve in tubular lorln, fiirining. i r structure around the sleeve intermediatethe coila' and the releasable holding n'leans and spaced from the latter, the socketsbeing ar ranged outwardly of and parallel to the sleeve whereby the will be embedded in the surrounding structure, releasing the holding means, bending the fingers hack to,positioi1s parallcltotheaxls of the s eeve, sliding the collar ifronrthe adjacententl of the, sleeve with the sockets remaining embedded in the surrounding: structure, rcbending the fingers outivzlrdly, and arranginga ceiling plate ad; jacent the end of the sleeve and securing it tothe sockets.

11. The herein described inethod of PTO- ducing and placing lining sleeves for pipe.

openings which consists in rolling a sheet of flexible material into substantially tubular torm with the edges thereof freely overlapof the sleeve and inwardly of the adjacent end thereof, forming a structure around the 10 sleeve with the sockets embedded therein, releasing the holding means for the sleeve, arranging a ceiling plate against the end of the sleeve adjacent the sockets, and securing the plate to the sockets. v

In testimony whereof I afiiX my signature.

LAWREN C. GNAGI. 

